package com.sky.service.impl;

import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.sky.constant.StatusConstant;
import com.sky.context.BaseContext;
import com.sky.dto.CategoryDTO;
import com.sky.dto.CategoryPageQueryDTO;
import com.sky.entity.Category;
import com.sky.exception.DeletionNotAllowedException;
import com.sky.mapper.CategoryMapper;
import com.sky.result.PageResult;
import com.sky.service.CategoryService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.bind.annotation.DeleteMapping;

import java.time.LocalDateTime;
import java.util.Collections;
import java.util.List;

@Service
public class CategoryServiceImpl implements CategoryService {
    @Autowired
    private CategoryMapper categoryMapper;


    @Override
    public void save(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO, category);
//        category.setCreateTime(LocalDateTime.now());
//        category.setUpdateTime(LocalDateTime.now());
//        category.setCreateUser(BaseContext.getCurrentId());
//        category.setUpdateUser(BaseContext.getCurrentId());
        category.setStatus(StatusConstant.ENABLE);
        categoryMapper.insert(category);
    }

    @Override
    public PageResult page(CategoryPageQueryDTO categoryPageQueryDTO) {
        PageHelper.startPage(categoryPageQueryDTO.getPage(), categoryPageQueryDTO.getPageSize());
        Page<Category>list=categoryMapper.getCategoryList(categoryPageQueryDTO);
        PageResult pageResult=new PageResult();
        pageResult.setTotal(list.getTotal());
        pageResult.setRecords(list.getResult());
        return pageResult;
    }

    @Override
    public void updateStatus(Integer status, Long id) {
        Category category = new Category();
        category.setStatus(status);
//        category.setUpdateTime(LocalDateTime.now());
//        category.setUpdateUser(BaseContext.getCurrentId());
        category.setId(id);
        categoryMapper.update(category);
    }

    @Override
    public void update(CategoryDTO categoryDTO) {
        Category category = new Category();
        BeanUtils.copyProperties(categoryDTO, category);
//        category.setUpdateTime(LocalDateTime.now());
//        category.setUpdateUser(BaseContext.getCurrentId());
        categoryMapper.update(category);
    }

    @DeleteMapping
    public void delete(Long id) {
        int count=categoryMapper.selectCount(id);
        if (count>0){
            throw new DeletionNotAllowedException("该分类下有商品,不能删除");
        }
        categoryMapper.delete(id);
    }

    @Override
    public List<Category> list(Integer type) {
        return categoryMapper.list(type);
    }
}
